AT75C310

Features ARM7TDMI™ ARM® Thumb® Processor Core Two 16-bit Fixed-point OakDSPCore® Cores 256 x 32-bit Boot ROM 88K Bytes of Integrated Fast RAM for Each DSP Flexible External Bus Interface with Programmable Chip Selects Dual Codec Interface Multi-level Priority, Individually Maskable, Vectored Interrupt Controller Three 16-bit Timer/Counters Additional Watchdog Timer Two USARTs with FIFO and Modem Control Lines Industry Standard Serial Peripheral Interface (SPI) Up to 23 General-purpose I/O Pins On-chip DRAM Controller JTAG Debug Interface Software Development Suites Available for ARM7TDMI and OakDSPCore Supported by a Wide Range of Ready-to-use Application Software, including Multitasking Operating System, Networking, Modems, and Voice-processing Functions Available in 160-lead PQFP Package 3.3V Power Supply Description The Atmel AT75C310 Smart Internet Appliance Processor (SIAP) is a high-performance processor specially designed for Internet appliance applications, such as Internet telephony (Voice over Internet Protocol – VoIP). The AT75C310 is built around an ARM7TDMI microcontroller core running at 20 MIPS with two DSP co-processors running at 40 MIPS each – all three processors delivering unmatched performance for low power consumption. In a typical standalone VoIP phone, one DSP handles the voice-processing functions (voice compression, acoustic echo cancellation, etc.), while the other one deals with the telephony functions (dialing...